var chapter_list = new Array(
  ["Vol.01 Ch.001: Magical First Kiss","v01/c001"],
  ["Vol.01 Ch.002: Perfect Compatibility!?","v01/c002"],
  ["Vol.01 Ch.003: Love Letter","v01/c003"],
  ["Vol.01 Ch.004: Can't Take It Any Longer!!","v01/c004"],
  ["Vol.01 Ch.005: Miu-chan Debuts!!","v01/c005"],
  ["Vol.01 Ch.006: F-Shock","v01/c006"],
  ["Vol.01 Ch.007: Public Kiss","v01/c007"],
  ["Vol.01 Ch.008: Entertainment","v01/c008"],
  ["Vol.01 Ch.009: Miu's Great Investigation","v01/c009"],
  ["Vol.01 Ch.010: Let's Travel","v01/c010"],
  ["Vol.01 Ch.011: Mysterious Visitor","v01/c011"],
  ["Vol.02 Ch.012: Hot Spring Maze","v02/c012"],
  ["Vol.02 Ch.013: Takaya Fever!!","v02/c013"],
  ["Vol.02 Ch.014: Sexy Cooking Showdown!","v02/c014"],
  ["Vol.02 Ch.015: Nightmare Once Again!","v02/c015"],
  ["Vol.02 Ch.016: Something Good","v02/c016"],
  ["Vol.02 Ch.017: Let's Call Out The Demon!","v02/c017"],
  ["Vol.02 Ch.018: Pendant's Whereabouts","v02/c018"],
  ["Vol.02 Ch.019: A Gentle Demon","v02/c019"],
  ["Vol.02 Ch.020: Kiss of Tears","v02/c020"],
  ["Vol.02 Ch.021: Heartbeat!?","v02/c021"],
  ["Vol.02 Ch.022: Photograph of Doubt","v02/c022"],
  ["Vol.02 Ch.023: Goodbye Lilim?","v02/c023"],
  ["Vol.02 Ch.024: I Wanted to Meet You","v02/c024"]
);

var total_chapters = 24;

for (var i = 0; i < chapter_list.length; i++) {
  document.getElementById('top_chapter_list').options[i] = new Option(chapter_list[i][0], chapter_list[i][1]);
  document.getElementById('bottom_chapter_list').options[i] = new Option(chapter_list[i][0], chapter_list[i][1]);
}
document.getElementById('top_chapter_list').value=current_chapter;
document.getElementById('bottom_chapter_list').value=current_chapter;
var current_chapter_index = document.getElementById('top_chapter_list').selectedIndex;